My Doc has always recommended NO oil, NO animals, to bring a body into optimal health, no matter what, testosterone included. Whether you are feeling 'pretty good considering' or at the wondering 'WTF is going on with my body' stage, the path is the same. No oil, no animals. This is going to take a small sacrifice but very well worth it is you want to avoid a painful, expensive decline with multiple chronic conditions, and prescription drugs to hold you together.
It's possibly the only safe way to turn back the clock, and it actually works.
There are websites to learn how it's possible to keep eating great meals without oil or animals. I don't miss eating animals, and oil is messy, and oil in food becomes yucky very quickly if you stop eating food with oil in it, or on it.
If you feel a chronic condition coming on, know that it is because of the animals and the oil. It's both. Vegans and vegetarians don't cut it, because they use a lot of oil or whole foods that have a lot of oil (nuts/avocado/cocoa) and some still eat dairy and eggs (oily and animal). No oil, no animals.
The problem with this miraculous cure for almost all chronic diseases -- is that only a few thousand people know this to be a fact, but they know it to be true for themselves. The world doesn't yet believe that the food that we eat can cure chronic conditions, or that the food that we eat is the cause of these chronic diseases in the first place. The world still believes that chronic conditions are a natural part of aging. Apparently they aren't. But then that makes more sense, doesn't it? If we can change what the world believes, one by one, example by example, at some point everyone will 'get it' and 'poof'! - a sea change and two problems - 'chronic diseases' and the 'cost' and tragedy of the health care crisis - vanish from the world within a few years.